Chosen Solution

Can anyone recommend any products to purchase for upgrading a MacBook Pro showing some age? Thanks.

If you do not have 16GB of RAM (how to check https://support.apple.com/en-us/HT203001 its under memory) you can upgrade to 16 GB. PC3L-12800 8 GB RAM Chip MacBook Pro 13" Unibody Mid 2012 RAM Replacement I also reccomend upgrading to an SSD, as that will give you a noticeable boost! (More than the extra RAM might) iFixit sells: 250GB 500GB 1000GB and a guide for free: MacBook Pro 13" Unibody Mid 2012 Hard Drive Replacement If you want one at a time, start with the SSD.

Honestly I would recommend the Toshiba Portege z20t. It is a great 2 in 1 at an affordable price. It has amazing battery life, up to 14 hours.